Maps of running routes in European cities.
Endomondo is a fitness tracking mobile app. By default user tracks are public and available online. I parsed first 170k public workouts, extracted GPS data out of them and put routes on city maps.
Despite the fact that raw log of these workouts was around 20 Gb in size, this is only around 1% of all the workouts available.
This is map of running and walking workouts in selected European cities.
I used a script in Ruby to download HTML pages of endomondo workouts, extract necessary information and write it to a delimited file. Then I used R to clean up log files, extract GPS coordinates and put them on map. R libraries I used: ggplot and ggmap for plotting, RJSONIO for parsing JSON data. Map tiles are from Stamen. Code behind this project is in a separate post.